Research

Astronomy & Space Sciences

Title :

Estimation of upper atmospheric (70-100 km height region) eddy dissipation rates using Doppler medium frequency radar (2-3 MHz) for the safe reentry of space capsules/shuttles carrying astronauts

Area of research :

Astronomy & Space Sciences

Focus area :

Middle Atmospheric Dynamics

Contact info :

Details

Executive Summary :

The dissipating atmospheric waves can cause highly-varying intense turbulent layers surrounding space capsules/shuttles while reentering the atmosphere from space with high mach speeds in the height region of 70-100 km. High time (few minutes) and spatial (few kilometers in horizontal and fraction of kilometers in the vertical) resolution measurement of wind velocities in this height region is a must to determine with less errors the atmospheric eddy dissipation rates, which is possible with medium (2-3 MHz) frequency Doppler radars.

Co-PI:

Dr. T. K. Ramkumar, National Atmospheric Research Laboratory (NARL), Gadanki

Organizations involved